使用formdata发布数组

时间:2012-06-07 18:00:52

标签: jquery arrays image html5 post

我正在使用新的HTML5 FormData-Object通过Ajax发布一些值和图像。它到目前为止工作正常。现在,我想使用这个对象发布一个数组,但我在服务器端的所有内容都是“[object - object]”。如何使用formdata发布数组?

到目前为止我得到了什么

var formData=new FormData();
formData.append('text', $('#text').attr('value'));
formData.append('headline',$('#headline').attr('value'));
formData.append('myarray',{key1: 'bla', key2: 'blubb'});

最后一行不起作用。我发送带有此代码的请求

                 $.ajax({
                        url: 'xyz',
                        data: formData,
                        type: 'POST',
                        processData: false,
                        contentType: false,
                        success: function(data) { 
                            var decoded=$.parseJSON(data);
                            displaySuccess('Success', decoded.message); 
                        },error: function(data){
                            var decoded=$.parseJSON(data);
                            displayError('Error', decoded.message);
                        },complete: function(data){
                            $('#cursor').hide();
                            $("#submitbutton").removeAttr('disabled')
                        }
                    });

提前致谢。

5 个答案:

答案 0 :(得分:16)

在关联数组的每个元素上使用.append()可能会产生您期望的结果。

取代这一行:

formData.append('myarray',{key1: 'bla', key2: 'blubb'});

您可以尝试以下方法:

var myarray = {key1: 'bla', key2: 'blubb'};

jQuery.each(myarray, function(key, value) {
    formData.append('myarray['+key+']', value);
});

答案 1 :(得分:5)

感谢。我现在提出了这个解决方案:

                for (i = 0; i < social_networks.length; i++) {
                    formData.append("myarray["+i+"][mykey]",arr[i]['mykey']);
                    formData.append("myarray["+i+"][mykey2]",arr[i]['mykey2']);
                }

答案 2 :(得分:3)

根据您的语法,您似乎尝试传递对象,而不是数组。我认为你不能通过HTML表单传递对象。

{ key1 : value1 , key2 : value2 }

<强> VS

[ value1, value2 ]

这是对一般JS syntax

的方便参考

答案 3 :(得分:2)

试试这个。它对我有用。

var files = $scope.myFile;
        var fd = new FormData();
        fd.append("file", files[0]);
        fd.append("assignment", JSON.stringify({ classAssignment: $scope.editItem }));

答案 4 :(得分:0)

我的服装清单是这样的

billlists = [{ Color: "White"Quantity: "1"Shape: "2.0"SizeNo1: "1"SizeNo2: "1"StoneColorCost: "20000"StoneColorWT: "0.006"Type: "1"__proto__: Object1: Color: "White"Quantity: "1"Shape: "2.0"SizeNo1: "0.5"SizeNo2: "0.7"StoneColorCost: "6"StoneColorWT: "0.005"Type: "1"},

{ Color: "White"Quantity: "1"Shape: "2.0"SizeNo1: "1"SizeNo2: "1"StoneColorCost: "20000"StoneColorWT: "0.006"Type: "1"__proto__: Object1: Color: "White"Quantity: "1"Shape: "2.0"SizeNo1: "0.5"SizeNo2: "0.7"StoneColorCost: "6"StoneColorWT: "0.005"Type: "1"}]

此代码用于格式化键/值对之类的数据

function serializeData(name, arr)
 {
   var a = [];
    for (var i = 0; i < arr.length; i++) 
        {
      for (var key in arr[i]) 
    {
 a.push({ name: name + '[' + i + '].' + key + '', value: arr[i][key] });
     }
        }
         return a;
                  }

  var mydata = serializeData('billlist', billlists);

  $.each(mydata, function (key, input) {
       fd.append(input.name, input.value);
            });

这是序列化数据的输出

0: {name: "billlist[0].Type", value: "1"}
1: {name: "billlist[0].Color", value: "White"}
2: {name: "billlist[0].Shape", value: "2.0"}
3: {name: "billlist[0].SizeNo1", value: "1"}
4: {name: "billlist[0].SizeNo2", value: "1"}
5: {name: "billlist[0].Quantity", value: "1"}
6: {name: "billlist[0].StoneColorWT", value: "0.006"}
7: {name: "billlist[0].StoneColorCost", value: "20000"}
8: {name: "billlist[1].Type", value: "1"}
9: {name: "billlist[1].Color", value: "White"}
10: {name: "billlist[1].Shape", value: "2.0"}
11: {name: "billlist[1].SizeNo1", value: "0.5"}
12: {name: "billlist[1].SizeNo2", value: "0.7"}
13: {name: "billlist[1].Quantity", value: "1"}
14: {name: "billlist[1].StoneColorWT", value: "0.005"}
15: {name: "billlist[1].StoneColorCost", value: "6"}

为我工作

但是在其他帖子中,我看到数据像一样通过

 {name: "billlist[0][Type]", value: "1"}

对我不起作用